Mr. Do!'s Castle Colecovision CV

Mr. Do!'s Castle is an action platformer that places you in a castle with multiple floors, each containing a variety of blocks. You control Mr. Do! the clown, who has a hammer that can be used to knock blocks off the floor. Roaming throughout the castle are deadly unicorns constantly trying to catch you. Your goal is to earn as many points as possible and progress through the increasingly difficult castles.